All of these examples provided immense benefit to consumers and immense benefit to sellers. Food delivery really doesn't provide an immense benefit to consumer

All of these examples provided immense benefit to consumers and immense benefit to sellers. Food delivery really doesn't provide an immense benefit to consumers, and restaurants don't get enough real business through it to justify its cost. On one hand, if the food is too local, people will just say "I'll just pick it up myself and save the ridiculous fee." If it's too far away, the food will take forever and will likely be cold anyway. This is why pizza delivery was always local - it is one of the few places where delivery makes sense, and the fees were low, like 1 buck. So there's a small range where it's just far enough to be inconvenient but close enough that the food is still relatively good, which in most cases doesn't exist. On top of that, you need to pay money to the driver. It's just a whole lot of overhead for very little gain.